From things that make you sound unprofessional to awkward or impolite — and even harassing comments — there are a lot of things you shouldn't say that could turn a work relationship ugly or even get you fired.

"In conversation, use a little common sense and discretion, especially when there are others present," Randall suggests. "The general guideline is that if you wouldn't say it in front of your boss, don't say it."

Aside from the obvious — like profanity and insults — here are some words and phrases you should never utter to your coworkers:

'How much do you get paid?'

"This question is not only unprofessional, but awkward," Randall says. "Why do you want to know? Will you complain to your boss if you find it inequitable? Or will you speak to your boss on your coworker's behalf insisting they get a raise?"

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'Can I borrow some cash?'

Most of us have forgotten to bring cash or our wallet to work once or twice, and, Randall says, in this rare occasion it might be OK to ask your understanding coworker to borrow some money for lunch.

"But if your wallet is always in your 'other purse,' don't be surprised if you're excluded from future lunches," she says.

3/

'Honestly'

Barbara Pachter, an etiquette expert and author of "The Essentials of Business Etiquette," says that drawing attention to your honesty at that moment can lead people to wonder, "Aren't you always honest with me?"

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'Did you hear ...'

"Negative comments about a coworker to another coworker will make you look worse than the person you're talking about, and guess who will be the one who looks bad when it gets back to the person you're talking about?" Randall says.

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'I like the way those pants fit you'

A compliment isn't against the law, Randall points out, but be selective about what you compliment.

Commenting on a coworker's physical appearance is considered unprofessional, she says — and worse, it could be construed as sexual harassment.

6/

'You people are always causing problems'

Topics like religion, politics, and child-rearing sometimes come up in the workplace, Randall says. But to negatively comment about any group is unwise and unprofessional, and it could get you in trouble for harassment.

7/

'Are you pregnant?'

The Office / NBC

This question rarely results in a positive outcome.

"If your coworker is not pregnant, you have insulted her," Oliver says. "If she is pregnant, she probably isn't ready to discuss it yet. Keep observations like this to yourself."

8/

'I'm sorry to be a bother'

"Why are you saying you're a bother?" Pachter asks.

And if you are truly sorry about something you haven't done yet, why would you go ahead and do it anyway?

"Excuse me. Do you have a moment?" works much better, she says.

9/

'I'm looking for another job — do you know of anyone who's hiring?'

"Sharing this with your coworkers may cause them to instinctively distance themselves, knowing you will no longer be a part of the team," Randall says.

"They also might unintentionally leak the information to your supervisor, which could explain your lack of productivity and absences, resulting in a poor reference or an invitation to pick up your paycheck earlier than you expected," she says.

10/

'See this rash? I'm expecting the lab results tomorrow'

Art of Manliness

"Except for maybe your mom or spouse, no one really wants to see or hear about peculiar rashes or any nausea-inducing medical conditions," Randall says. "Limit your sharing to a cold or headache."

11/

'I think ...'

Saying "I think" is sometimes acceptable, but only if you truly are unsure.

"Using 'I think' can make you appear wishy-washy," Pachter says. When you know something, state it directly: "The meeting will be at 3 p.m."

12/

'Wow, I was surprised to hear that they asked you to give the presentation'

You might as well say, "It should have been me."

"The professional response would be, 'Congratulations,'" Randall says.

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'Do you mind covering for me while I'm in Bora Bora?'

Daniel Munoz/Stringer/Getty Images

Flaunting your luxurious lifestyle with your colleagues may set off a jealousy epidemic, Oliver says. In general, it's best to avoid bragging about how great your life is.

14/

'Am I invited?'

"This is the grown-up world — not everyone will be invited to everything," Randall says. "Besides, are you prepared for the answer?"

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'Ugh! My boyfriend [did XYZ] again'

Sharing intimate details about your love life falls into the "too much information" category, she says, and "if it doesn't enhance your professional image, or enrich workplace relationships, you should keep it to yourself."

16/

'No one will notice if I take a box of the coffee packets for my girlfriend's new office'

REUTERS/Gary Hershorn

You just admitted to stealing, a cause for termination and, at the very least, loss of trust, Randall says.

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'She's such a credit snatcher'

Maybe your colleague or boss took credit for your work, but carping about the problem to your coworkers rarely helps, Oliver says. Instead, it's best to address the issue with the person who took credit for your idea.

18/

'I'm suing the pants off this company!'

"Whether the charge is legitimate or not, spreading it around will not serve you well — just ask your attorney," Randall says.

If you're really suing your employer, it's best to conduct yourself with discretion and dignity and continue to perform your duties to the best of your ability. If this becomes impossible, you should consider resigning, Randall says.

"But if this is your go-to threat when you're unhappy about something, stop it!" she says.

'That's not how I learned how to do it'

Nothing sounds more negative and dismissive as this.

A good team player will keep an open mind to learning and trying new things.

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'Aren't you ready to retire?'

For some people, the subject of age is touchy, and, just like assuming someone's pregnant is a huge no-no, making assumptions and comments about someone's age rarely results in a positive outcome, Randall says.